在indexedDB中输入后无法立即提取用户信息

时间:2013-03-23 11:45:16

标签: javascript html html5 local-storage indexeddb

我有一个带有indexedDB的注册表单。我有resgister /登录工作。我一直在尝试不同的东西,一旦他们注册就可以获得一个新的注册登记,但我不确定会发生什么。它不会起作用。 localStorage设置它应该但它不会显示用户的数据。

JS:

function addObject(){
    if(confirm('Are you sure you want to resgister?')){
     fName = document.getElementById('fName').value;
     lName = document.getElementById('lName').value;
     userName = document.getElementById('uName').value;
     pass = document.getElementById('password').value;
     email = document.getElementById('email').value;
     dob = document.getElementById('dob').value;
     tel = document.getElementById('tel').value;
     bio = document.getElementById('bio').value;
     terms = document.getElementById('terms').value;
     school = document.getElementById('school').value;

     //Need loop to find radio button values
     radios = document.getElementsByName('gender');
     for (var i = 0, length = radios.length; i < length; i++) {
        if (radios[i].checked) {
            gender=radios[i].value;
        }
     }

        //set up transaction
        var mytransaction = db.transaction(['users'], "readwrite"); 

        //get object store
        var myusers = mytransaction.objectStore('users'); 

        //Add item
        var request = myusers.put(new getUser(userName,fName,lName,pass,email,dob,tel,bio,terms,school,gender));
    }

    // Show all results.
    if(document.URL.indexOf('admin.html') > -1){
        mytransaction.addEventListener('complete', showUsers);  
    } 

    //Log in new users
    loginCheck(userName,pass);
    /*newLocal('user',user); */
    //Reset Form Fields
    resetForm(); 

}

这是我登录时使用的功能。

function loginCheck(user,pass){    
db.transaction("users").objectStore("users").get(user).onsuccess = function(e) {
    var loggedUser = e.target.result;
        if(!loggedUser){
            alert('Sorry, Username does not exist. Please try again.');
        }else if(pass !== loggedUser.pw ){
            alert('Incorrect log in combination. Please try again.');
            }else{
                loggedIn(loggedUser);
                populateFields(loggedUser);
                loginStyle(loggedUser)
                }        
    }    
}
function loggedIn(loggedUser){
    var u=loggedUser;
    alert('Welcome '+u.fn+' '+u.ln+' to Macroplay');       

    //Set localStorage     
    var signedin = 'user';
    var username = u.userName;
    newLocal(signedin,username);
}
function getValues(){ 
db.transaction("users").objectStore("users").get(localStorage.user).onsuccess = function(e) { 
    populateFields(e.target.result); 
    loginStyle(e.target.result)
    }; 
    ;
}

从我所看到的第一部分将用户添加到数据库中,第二部分应该像我刚刚正常记录一样。但它不会从数据库中获取信息。

我已经尝试将新用户设置为localStorage,这是我如何识别当前登录的用户,但也没有效果。

这是我的网站:http://www3.carleton.ca/clubs/sissa/html5

1 个答案:

答案 0 :(得分:0)

看起来你在onsuccess方法中使用了loginCheck处理程序,但是在数据库上调用put时却没有。我的猜测是你在实际有机会被添加之前检查用户是否存在。试试这个:

//Add item
var request = myusers.put(new getUser(userName,fName,lName,pass,email,dob,tel,bio,terms,school,gender));
request.onsuccess = function () {

    // Show all results.
    if(document.URL.indexOf('admin.html') > -1){
        mytransaction.addEventListener('complete', showUsers);  
    } 

    //Log in new users
    loginCheck(userName,pass);
    /*newLocal('user',user); */
    //Reset Form Fields
    resetForm(); 
}